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A0T097

- PSBD_PHATC

UniProt

A0T097 - PSBD_PHATC

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Protein
Photosystem II D2 protein
Gene
psbD
Organism
Phaeodactylum tricornutum (strain CCAP 1055/1)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

One of the two reaction center proteins of photosystem II (PSII), D2 is needed for assembly of a stable PSII complex By similarity.UniRule annotation

Catalytic activityi

2 H2O + 2 plastoquinone + 4 light = O2 + 2 plastoquinol.UniRule annotation

Cofactori

The psbA/B heterodimer shares a non-heme iron and each subunit also binds two chlorophylls and pheophytin By similarity.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi116 – 1161Magnesium (chlorophyll-a D2, axial ligand; peripheral) By similarity
Metal bindingi213 – 2131Iron; shared with heterodimeric partner By similarity
Binding sitei213 – 2131Plastoquinone QA By similarity
Binding sitei260 – 2601Plastoquinone QA; via amide nitrogen By similarity
Metal bindingi267 – 2671Iron; shared with heterodimeric partner By similarity

GO - Molecular functioni

  1. electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity Source: InterPro
  2. iron ion binding Source: UniProtKB-HAMAP
  3. oxidoreductase activity Source: UniProtKB-KW

GO - Biological processi

  1. photosynthetic electron transport in photosystem II Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Keywords - Ligandi

Iron, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem II D2 protein (EC:1.10.3.9)
Short name:
PSII D2 protein
Alternative name(s):
Photosystem Q(A) protein
Gene namesi
Name:psbD
Encoded oniPlastid; Chloroplast
OrganismiPhaeodactylum tricornutum (strain CCAP 1055/1)
Taxonomic identifieri556484 [NCBI]
Taxonomic lineageiEukaryotaStramenopilesBacillariophytaBacillariophyceaeBacillariophycidaeNaviculalesPhaeodactylaceaePhaeodactylum
ProteomesiUP000000759: Chloroplast

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei34 – 5421Helical; Reviewed prediction
Add
BLAST
Transmembranei107 – 12721Helical; Reviewed prediction
Add
BLAST
Transmembranei140 – 16223Helical; Reviewed prediction
Add
BLAST
Transmembranei190 – 21627Helical; Reviewed prediction
Add
BLAST
Transmembranei264 – 28421Helical; Reviewed prediction
Add
BLAST

GO - Cellular componenti

  1. chloroplast thylakoid membrane Source: UniProtKB-SubCell
  2. integral component of membrane Source: UniProtKB-KW
  3. photosystem II Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Photosystem II, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 351351Photosystem II D2 proteinUniRule annotation
PRO_0000359708Add
BLAST

Proteomic databases

PRIDEiA0T097.

Interactioni

Subunit structurei

The psbA/B heterodimer binds the P680 chlorophylls and subsequent electron acceptors. PSII consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. PSII forms dimeric complexes By similarity.

Structurei

3D structure databases

ProteinModelPortaliA0T097.
SMRiA0T097. Positions 1-349.

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

Gene3Di1.20.85.10. 2 hits.
HAMAPiMF_01383. PSII_PsbD_D2.
InterProiIPR000484. Photo_RC_L/M.
IPR005868. PSII_PsbD/D2.
[Graphical view]
PfamiPF00124. Photo_RC. 1 hit.
[Graphical view]
PRINTSiPR00256. REACTNCENTRE.
SUPFAMiSSF81483. SSF81483. 1 hit.
TIGRFAMsiTIGR01152. psbD. 1 hit.
PROSITEiPS00244. REACTION_CENTER. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

A0T097-1 [UniParc]FASTAAdd to Basket

« Hide

MTIAIGQNQE RGIFDLIDDW LKKDRFVFVG WSGLLLFPTA YLAVGGWMTG    50
TTFVTSWYTH GLASSYLEGC NFLTAAVSSP ANSMGHSLLL LWGPEAQGDF 100
TRWCQIGGLW TFVALHGSFG LIGFCLRQFE IARLVGIRPY NAIAFSGPIA 150
VFVSVFLLYP LGQASWFFAP SFGVAAIFRF LLFLQGFHNW TLNPFHMMGV 200
AGILGGALLC AIHGATVENT LFEDGDAANT FRAFTPTQSE ETYSMVTANR 250
FWSQIFGVAF SNKRWLHFFM LFVPVTGLWT SAIGIVGLAL NLRAYDFVSQ 300
ELRAAEDPEF ETFYTKNILL NEGIRAWMAA QDQPHENFVF PEEVLPRGNA 350
L 351
Length:351
Mass (Da):39,078
Last modified:January 9, 2007 - v1
Checksum:iBC1156106B69EC56
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
EF067920 Genomic DNA. Translation: ABK20600.1.
RefSeqiYP_874377.1. NC_008588.1.

Genome annotation databases

GeneIDi4524620.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
EF067920 Genomic DNA. Translation: ABK20600.1 .
RefSeqi YP_874377.1. NC_008588.1.

3D structure databases

ProteinModelPortali A0T097.
SMRi A0T097. Positions 1-349.
ModBasei Search...
MobiDBi Search...

Proteomic databases

PRIDEi A0T097.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

GeneIDi 4524620.

Family and domain databases

Gene3Di 1.20.85.10. 2 hits.
HAMAPi MF_01383. PSII_PsbD_D2.
InterProi IPR000484. Photo_RC_L/M.
IPR005868. PSII_PsbD/D2.
[Graphical view ]
Pfami PF00124. Photo_RC. 1 hit.
[Graphical view ]
PRINTSi PR00256. REACTNCENTRE.
SUPFAMi SSF81483. SSF81483. 1 hit.
TIGRFAMsi TIGR01152. psbD. 1 hit.
PROSITEi PS00244. REACTION_CENTER. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Chloroplast genomes of the diatoms Phaeodactylum tricornutum and Thalassiosira pseudonana: comparison with other plastid genomes of the red lineage."
    Oudot-Le Secq M.-P., Grimwood J., Shapiro H., Armbrust E.V., Bowler C., Green B.R.
    Mol. Genet. Genomics 277:427-439(2007) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: CCAP 1055/1.

Entry informationi

Entry nameiPSBD_PHATC
AccessioniPrimary (citable) accession number: A0T097
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 20, 2009
Last sequence update: January 9, 2007
Last modified: May 14, 2014
This is version 51 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)

Miscellaneousi

Miscellaneous

The peripheral chlorophyll-a D2 molecule has been identified as the spectroscopic species ChlzD2 By similarity.

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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